Woodbridge, Virginia
Occoquan Bay National Wildlife Refuges lies along Prince William's Potomac River shoreline. Access to the wetland areas of the Marumsco section of the Occoquan Bay Refuge is restricted, although some areas can be viewed from Veteran's Park. The Occoquan Bay National Wildlife Refuge, at the confluence of the Occoquan and Potomac Rivers, hosts a broad diversity of wetland habitats and is a premier area for birding and butterfly enthusiasts.